Suspicious as a generator of disquiet may be found in certain contemporary paintings when a simple house, seen in an ambiguous light, and isolated against the landscape, becomes haunted and takes on a threatening and malign air […] The Kafka of The Trial was a master of suspicioun, but sometimes (as in Metamorphosis) what is uncanny is not so much the horror that is shown and described 9a man wakes up to find he has been transformed into a disgusting insect), but the fact that his family take the event as embarrassing yet entirely natural, and we suspect that the story is really talking about our acquiescence in the face of the evil that surrounds us.
Umberto Eco, On Ugliness, p323.
